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Stellar Occultation by (1234) Elyna on 2025-09-23 (21:34:50 UT)

CTU: Cross-track uncertainty (zero means: use the nominal prediction value, see event details below). Offsets and CTU all in mas.


Event Details
 Occultation UUID [and db] : 72c66150-ddb8-11f0-547e-81bebf64b8e0 [observed]

 Occultation Date + Time   : 2025-09-23 at 21:34:50 UT +/- 0.01 min  [1]
 Object Designation        : (1234) Elyna
 Star Designation          : GDR3 2782441653012156800
 Star Coordinates (ICRF)   : RA = 00 37 13.9519, DE = +17 05 52.789  [2]
 Star Magnitudes           : G = 13.4 mag, RP = 12.94 mag, BP = 13.7 mag
 Object Magnitude          : V = 14.96 mag
 Estimated Magnitude Drop  : 1.8 mag
 Estimated Max. Duration   : 2.5 sec
 Speed of the shadow       : 10.6 km/s
 Object Mean Diameter      : 26.0 km  (src: astorb) => apparent = 20 mas
 Apparent Motion           : 0.4850 arcs/min @ PA = 259 deg
 Horizontal Parallax       : 4.8780 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 167° (sunlit = 4%), Sun = 161°
 Cross-track uncertainty   : 1.3 mas = 1 km = 0.07 path-width (1-sig)
 RUWE and duplicate source : 0.98 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#76
 Note                      : FP:true

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


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